JP2015114368A5 - Pressure roller and image heating apparatus provided with the same - Google Patents
Pressure roller and image heating apparatus provided with the same Download PDFInfo
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- JP2015114368A5 JP2015114368A5 JP2013254131A JP2013254131A JP2015114368A5 JP 2015114368 A5 JP2015114368 A5 JP 2015114368A5 JP 2013254131 A JP2013254131 A JP 2013254131A JP 2013254131 A JP2013254131 A JP 2013254131A JP 2015114368 A5 JP2015114368 A5 JP 2015114368A5
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- rubber layer
- thermal conductivity
- filler
- thickness direction
- pressure roller
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- 238000010438 heat treatment Methods 0.000 title claims description 19
- 239000011231 conductive filler Substances 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 4
- 239000000758 substrate Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims 12
- 230000000630 rising effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Description
本発明は、加圧ローラ及びこれを備えた画像加熱装置に関する。 The present invention relates to a pressure roller and an image heating apparatus including the pressure roller .
本発明は上記問題に鑑みてなされたもので、非通紙領域での過度な温度上昇の発生を抑制し、かつ定着部材の立ち上がり時間を短縮することの可能な加圧ローラ、及びこれを備えた画像加熱装置の提供を目的とする。 The present invention has been made in view of the above problems, and includes a pressure roller capable of suppressing the occurrence of an excessive temperature rise in a non-sheet passing region and shortening the rising time of the fixing member, and the pressure roller . Another object is to provide an image heating apparatus.
本発明に係る加圧ローラは、円筒状の芯金と、前記芯金上に設けられた非多孔質の第一のゴム層と、前記第一のゴム層上に設けられた多孔質の第二のゴム層と、を有し、前記第二のゴム層には、その長手方向の熱伝導率がその厚さ方向の熱伝導率よりも高くなるように、熱伝導性フィラーが分散され、前記第一のゴム層には、その厚さ方向の熱伝導率が前記第二のゴム層の厚さ方向の熱伝導率よりも大きくなるように、熱伝導性フィラーが分散されている、ことを特徴とする。
本発明に係る画像加熱装置は、記録材上のトナー像をニップ部にて加熱する加熱回転体と、前記加熱回転体と協働して前記ニップ部を形成する加圧回転体と、を備え、前記加圧回転体は、基体と、前記基体上に設けられた非多孔質の第一のゴム層と、前記第一のゴム層上に設けられた多孔質の第二のゴム層と、を有し、前記第二のゴム層には、その長手方向の熱伝導率がその厚さ方向の熱伝導率よりも高くなるように、熱伝導性フィラーが分散され、前記第一のゴム層には、その厚さ方向の熱伝導率が前記第二のゴム層の厚さ方向の熱伝導率よりも大きくなるように、熱伝導性フィラーが分散されている、ことを特徴とする。
The pressure roller according to the present invention includes a cylindrical metal core, a non-porous first rubber layer provided on the metal core, and a porous first metal layer provided on the first rubber layer. A heat conductive filler is dispersed in the second rubber layer so that the thermal conductivity in the longitudinal direction is higher than the thermal conductivity in the thickness direction, Thermally conductive filler is dispersed in the first rubber layer so that the thermal conductivity in the thickness direction is larger than the thermal conductivity in the thickness direction of the second rubber layer. It is characterized by.
An image heating apparatus according to the present invention includes a heating rotator that heats a toner image on a recording material at a nip portion, and a pressure rotator that forms the nip portion in cooperation with the heating rotator. the pressure rotating body, a base, and a non-porous the first rubber layer provided on the substrate, and the porous second rubber layer provided on the first rubber layer, A heat conductive filler is dispersed in the second rubber layer such that the thermal conductivity in the longitudinal direction is higher than the thermal conductivity in the thickness direction, and the first rubber layer Is characterized in that a thermally conductive filler is dispersed so that the thermal conductivity in the thickness direction is larger than the thermal conductivity in the thickness direction of the second rubber layer .
Claims (20)
前記芯金上に設けられた非多孔質の第一のゴム層と、 A non-porous first rubber layer provided on the core metal;
前記第一のゴム層上に設けられた多孔質の第二のゴム層と、を有し、 A porous second rubber layer provided on the first rubber layer,
前記第二のゴム層には、その長手方向の熱伝導率がその厚さ方向の熱伝導率よりも高くなるように、熱伝導性フィラーが分散され、 In the second rubber layer, a thermally conductive filler is dispersed so that the thermal conductivity in the longitudinal direction is higher than the thermal conductivity in the thickness direction,
前記第一のゴム層には、その厚さ方向の熱伝導率が前記第二のゴム層の厚さ方向の熱伝導率よりも大きくなるように、熱伝導性フィラーが分散されている、 In the first rubber layer, a thermal conductive filler is dispersed so that the thermal conductivity in the thickness direction is larger than the thermal conductivity in the thickness direction of the second rubber layer.
ことを特徴とする加圧ローラ。 A pressure roller characterized by that.
ことを特徴とする請求項１に記載の加圧ローラ。 The longitudinal thermal conductivity of the second rubber layer is the second least 6 times the thickness direction of the thermal conductivity of the rubber layer,
The pressure roller according to claim 1 .
ことを特徴とする請求項２に記載の加圧ローラ。 Thermally conductive filler which is dispersed in the second rubber layer is needle-like filler, longitudinal thermal conductivity of the filler needles is 500W / (m · K) above,
The pressure roller according to claim 2 .
ことを特徴とする請求項３に記載の加圧ローラ。 The pressure roller according to claim 3.
ことを特徴とする請求項２に記載の加圧ローラ。 The pressure roller according to claim 2.
ことを特徴とする請求項５に記載の加圧ローラ。 The pressure roller according to claim 5.
ことを特徴とする請求項６に記載の加圧ローラ。 The pressure roller according to claim 6.
ことを特徴とする請求項１に記載の加圧ローラ。 The pressure roller according to claim 1.
ことを特徴とする請求項８に記載の加圧ローラ。 The pressure roller according to claim 8.
ことを特徴とする請求項１に記載の加圧ローラ。 The pressure roller according to claim 1.
前記加熱回転体と協働して前記ニップ部を形成する加圧回転体と、を備え、
前記加圧回転体は、基体と、前記基体上に設けられた非多孔質の第一のゴム層と、前記第一のゴム層上に設けられた多孔質の第二のゴム層と、を有し、
前記第二のゴム層には、その長手方向の熱伝導率がその厚さ方向の熱伝導率よりも高くなるように、熱伝導性フィラーが分散され、
前記第一のゴム層には、その厚さ方向の熱伝導率が前記第二のゴム層の厚さ方向の熱伝導率よりも大きくなるように、熱伝導性フィラーが分散されている、
ことを特徴とする画像加熱装置。 A heating rotator for heating the toner image on the recording material at the nip portion;
A pressure rotator that forms the nip portion in cooperation with the heating rotator, and
The pressure rotating body includes a substrate, a first rubber layer of nonporous provided on said substrate, and a second rubber layer of porous provided in the first rubber layer Have
In the second rubber layer, a thermally conductive filler is dispersed so that the thermal conductivity in the longitudinal direction is higher than the thermal conductivity in the thickness direction,
In the first rubber layer, a thermal conductive filler is dispersed so that the thermal conductivity in the thickness direction is larger than the thermal conductivity in the thickness direction of the second rubber layer.
An image heating apparatus .
ことを特徴とする請求項１１に記載の画像加熱装置。 The image heating apparatus according to claim 11.
ことを特徴とする請求項１２に記載の画像加熱装置。 The image heating apparatus according to claim 12.
ことを特徴とする請求項１３に記載の画像加熱装置。 The image heating apparatus according to claim 13.
ことを特徴とする請求項１２に記載の画像加熱装置。 The image heating apparatus according to claim 12.
ことを特徴とする請求項１５に記載の画像加熱装置。 The image heating apparatus according to claim 15.
ことを特徴とする請求項１６に記載の画像加熱装置。 The image heating apparatus according to claim 16.
ことを特徴とする請求項１１に記載の画像加熱装置。 The image heating apparatus according to claim 11.
ことを特徴とする請求項１８に記載の画像加熱装置。 The image heating apparatus according to claim 18.
ことを特徴とする請求項１１に記載の画像加熱装置。 The image heating apparatus according to claim 11.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013254131A JP2015114368A (en) | 2013-12-09 | 2013-12-09 | Nip part forming member and fixing device using nip part forming member |
| US14/562,997 US9335690B2 (en) | 2013-12-09 | 2014-12-08 | Pressing roller and image heating apparatus having same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013254131A JP2015114368A (en) | 2013-12-09 | 2013-12-09 | Nip part forming member and fixing device using nip part forming member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2015114368A JP2015114368A (en) | 2015-06-22 |
| JP2015114368A5 true JP2015114368A5 (en) | 2017-01-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2013254131A Pending JP2015114368A (en) | 2013-12-09 | 2013-12-09 | Nip part forming member and fixing device using nip part forming member |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US9335690B2 (en) |
| JP (1) | JP2015114368A (en) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014134696A (en) * | 2013-01-11 | 2014-07-24 | Ricoh Co Ltd | Fixing member for fixing electrophotography, fixing device, and image forming apparatus |
| JP6525733B2 (en) | 2014-06-04 | 2019-06-05 | キヤノン株式会社 | Fixing member and manufacturing method thereof, fixing device and electrophotographic image forming apparatus |
| JP6544993B2 (en) | 2014-06-23 | 2019-07-17 | キヤノン株式会社 | Manufacturing device for fixing member |
| JP6312544B2 (en) * | 2014-07-16 | 2018-04-18 | キヤノン株式会社 | NIP FORMING MEMBER, IMAGE HEATING DEVICE, AND METHOD FOR PRODUCING NIP FORMING MEMBER |
| JP6570339B2 (en) | 2014-07-16 | 2019-09-04 | キヤノン株式会社 | Fixing member and pressure roller |
| JP2016024217A (en) | 2014-07-16 | 2016-02-08 | キヤノン株式会社 | Image heating device |
| JP6570350B2 (en) * | 2014-07-16 | 2019-09-04 | キヤノン株式会社 | Elastic roller and fixing device |
| JP2016184085A (en) * | 2015-03-26 | 2016-10-20 | 富士ゼロックス株式会社 | Pressure member for fixation, fixing device, and image forming apparatus |
| JP6659091B2 (en) * | 2015-06-16 | 2020-03-04 | キヤノン株式会社 | Pressure roller, heating device, and image forming device |
| US9891565B1 (en) | 2016-07-28 | 2018-02-13 | Canon Kabushiki Kaisha | Fixing member, fixing apparatus and electrophotographic image forming apparatus |
| US10353330B2 (en) | 2017-03-28 | 2019-07-16 | Canon Kabushiki Kaisha | Electrophotographic rotatable pressing member and method of manufacturing the same, and fixing device |
| JP6946073B2 (en) | 2017-06-23 | 2021-10-06 | キヤノン株式会社 | Fixing member, fixing device and image forming device using this |
| JP2019028101A (en) | 2017-07-25 | 2019-02-21 | キヤノン株式会社 | Pressure roller, image heating device, and image forming apparatus |
| US10591856B2 (en) * | 2018-04-18 | 2020-03-17 | Canon Kabushiki Kaisha | Roller with filler bundle in elastic layer and fixing device |
| JP7114351B2 (en) * | 2018-06-07 | 2022-08-08 | キヤノン株式会社 | Fixing member and heat fixing device |
| JP7321771B2 (en) | 2018-06-07 | 2023-08-07 | キヤノン株式会社 | Fixing member and heat fixing device |
| JP7187193B2 (en) | 2018-07-10 | 2022-12-12 | キヤノン株式会社 | Fixing device |
| WO2020044846A1 (en) * | 2018-08-27 | 2020-03-05 | グンゼ株式会社 | Tube for image formation device |
| US11467520B2 (en) | 2020-09-08 | 2022-10-11 | Canon Kabushiki Kaisha | Electrophotographic fixing member, fixing device, and electrophotographic image forming apparatus |
| US11573515B2 (en) | 2021-04-19 | 2023-02-07 | Canon Kabushiki Kaisha | Fixing member and heat fixing apparatus |
| US12072653B2 (en) | 2021-06-15 | 2024-08-27 | Canon Kabushiki Kaisha | Electrophotographic belt, electrophotographic image forming apparatus, method of producing electrophotographic belt, and varnish |
| US11927904B2 (en) | 2021-06-16 | 2024-03-12 | Canon Kabushiki Kaisha | Electrophotographic belt having a substrate containing a polyimide resin and carbon nanotubes, electrophotographic image forming apparatus, fixing device, and varnish |
| JP7782195B2 (en) * | 2021-10-14 | 2025-12-09 | 富士フイルムビジネスイノベーション株式会社 | Endless belt, fixing belt, fixing device, and image forming apparatus |
| US11841630B2 (en) | 2021-12-24 | 2023-12-12 | Canon Kabushiki Kaisha | Fixing member and heat fixing device |
| JP2024090278A (en) * | 2022-12-22 | 2024-07-04 | 富士フイルムビジネスイノベーション株式会社 | Tubular fixing member, fixing device and image forming apparatus |
| JP2024118907A (en) * | 2023-02-21 | 2024-09-02 | 富士フイルムビジネスイノベーション株式会社 | Transfer belt, transfer device, and image forming apparatus |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002351243A (en) | 2001-05-23 | 2002-12-06 | Canon Inc | Fixing device and image forming device |
| JPWO2008026296A1 (en) * | 2006-10-19 | 2010-01-14 | 住友電工ファインポリマー株式会社 | Pressure roller and manufacturing method thereof |
| JP5424801B2 (en) | 2009-10-05 | 2014-02-26 | キヤノン株式会社 | Fixing member, manufacturing method thereof, and image heating fixing device |
| JP5822559B2 (en) * | 2010-07-15 | 2015-11-24 | キヤノン株式会社 | Pressure roller, image heating apparatus using the pressure roller, and method for manufacturing the pressure roller |
| JP5721460B2 (en) * | 2011-02-08 | 2015-05-20 | キヤノン株式会社 | Image heating apparatus and roller used therefor |
| EP2940531A4 (en) | 2012-12-26 | 2016-08-10 | Canon Kk | Adhesion device and electrophotographic image forming device |
-
2013
- 2013-12-09 JP JP2013254131A patent/JP2015114368A/en active Pending
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- 2014-12-08 US US14/562,997 patent/US9335690B2/en not_active Expired - Fee Related
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